The Suwon, South Korea-based conglomerate will pay $112 a share in cash for Harman, whose offerings including car systems, audio and visual products and other connected products. Harman's shares closed at $87.65 on Friday.

The move comes as Samsung continues to stand on shaky ground since battery problems -- including fires -- forced the world's largest smartphone maker to withdraw its flagship Galaxy Note 7, leaving room for Apple ( AAPL - Get Report) and other rivals to fill the void. Samsung has also had to recall 2.8 million washing machines in the U.S. following reports the machine tops can detach during use.

"Samsung just did what I begged Apple to do: Buy Harman. This is a brilliant move for Samsung as Harman knows the connected car best," said TheStreet's Jim Cramer. "For $8 billion in cash Samsung now can own the infotainment and cybersecurity of the car!"

Siemens has offered $37.25 a share in cash for the Wilsonville, Ore.-based company, a 21% premium over Friday's closing price. The acquisition is part of what the company calls "Siemen's Vision 2020," in which it identified software as a key growth area and extends its Digital Enterprise Software portfolio.

Siemen's shares rose 1.5% in Frankfurt. Shares of Mentor Graphics rose 19.3% in premarket trading Monday in New York after ending Friday's session up 1.79% at $30.68.

Mentor Graphics makes software for designing semiconductors, offering automation software ranging from integrated circuit and system-on-chip design for automotive electronics as companies continue to scramble for a piece of the self-driving car market.

"With Mentor, we're acquiring an established technology leader with a talented employee base that will allow us to supplement our world-class industrial software portfolio. It will complement our strong offering in mechanics and software with design, test and simulation of electrical and electronic systems," said Klaus Helmrich, a member of the managing board of Siemens.

3. -- U.S. stock futures turned mixed on Monday after trading higher earlier in the session.

European stocks came off their highs as it looked as if equity markets would resume their global rally into a second week following Donald Trump's victory last week in the race for the U.S. presidency.

The Dow Jones Industrial Average closed on Friday at a record 18,847.66.

Oil prices in the U.S early Monday fell 1.4% to $42.80 a barrel. Gold rose slightly to $1,224.40 an ounce.

The economic calendar in the U.S. on Monday is bare but Federal Reserve officials will be making the rounds. Dallas Fed President Robert Kaplan will participate in a Q&A at the Wichita Falls Annual Economic Forum in Wichita Falls, Texas, at 1:20 p.m. EST, Richmond Fed President Jeffrey Lacker will participate in discussion on the natioanl debt at Washington College in Chestertown, Md., at 4:30 p.m., while San Francisco Fed Bank President John Williams will take part in a panel discussion at the Bay Area Council in San Francisco at 6 p.m.

4. -- American Apparel LLC filed for bankruptcy protection for a second time within little over a year in Delaware.

Canada's Gildan Activewear (GIL - Get Report) disclosed the bankruptcy filing as it announced a deal to buy the worldwide intellectual property rights of the American Apparel brand for $66 million in cash.

The $66 million figure would constitute an initial bid if the bankruptcy court forces an auction of American Apparel's assets. "Gildan will be entitled to a breakup fee and certain expense reimbursements if it does not prevail as the successful bidder at any such auction," the Canadian company said.

5. -- Toyota (TM - Get Report) will pay up to $3.4 billion to settle a class action lawsuit brought by U.S. pickup truck and SUV owners who claimed their vehicles lacked adequate rust protection.

Court filings show that the proposed settlement covers 1.5 million vehicles, dealing a financial blow to the Japanese automaker, whose trucks were subject to corrosion that could harm their structural integrity. The settlement applies to Tacoma trucks made from 2005 to 2010, Sequoias from 2005 to 2008 and Tundras from 2007 to 2008.

The settlement estimates the value of replacing the frame at roughly $15,000 per vehicle. Plaintiffs' lawyers had pegged the total cost at nearly $3.4 billion.